Finding the Third Proportional to 148,276.50 and 308,841

Step by Step Solution

1. Step 1: Write the proportion equation
   148,276.50 : 308,841 = 308,841 : x
2. Step 2: Convert to fraction form
   148,276.50/308,841 = 308,841/x
3. Step 3: Cross multiply
   148,276.50x = 308,841 × 308,841
4. Step 4: Simplify right side
   148,276.50x = 95,382,763,281
5. Step 5: Solve for x
   x = 95,382,763,281/148,276.50
6. Step 6: Final answer
   x = 643,276.33